Gas-engine.



No. 735,035. PATENTED JULY 28, 1903.

W. H. JONES.

GAS ENGINE.

APPLICATION rum) um. e, 1903.

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W. H. JONES.

GAS ENGINE.

APPLICATION FILED JAN. 6. 1903.-

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UNITED STATES Patented July 28, 1903.

\VILLIAM H. JONES, OF CAMBRIDGE, MASSACHUSETTS.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 735,035, dated July 28, 1903. Original application filed November 18, 1902, Serial No. 129,843. Divided and this application filed January 6,1903. Serial To all whont it 77mg concern:

Be it known that 1, WILLIAM H. Jonas, a citizen of the United States, residing in Cambridge, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Gas-Engines, of which the following is a specification.

This invention relates to gas-engines in which the power results from a succession of explosions, and particularly that class of gaseugines of the so-called four-cycle type, in which the cylinder makes an explosion every second revolution.

Moreover, the invention relates to that class of gas-engines in which there is a plurality of cylinders arranged with relation to the shaft in such a manner that the explosions therein take place consecutively and with great rapidity, whereby neutralization and practical absorption of the vibrations from the different cylinders is effected and a balanced motor is produced.

In the drawings I have illustrated my invention as applied to a gas-engine in-which three cylinders are arranged radially around the shaft; but I do not confine myself to such an, arrangement of cylinders.

This invention or improvement relates particularly to a construction which comprises a system of piping for conveying the gas mix-, ture and the exhaust-gases to and from the engine, such pipes being so designed, constructed, and applied that they may be easily and quickly removed and replaced by an ordinary operator, whereby quick access to and inspection of the working parts of the engine are obtained for any purpose, such as making repairs, adjustment of the parts, &c.

The nature of the invention is fully described below and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation, looking from the left, of a sufficient portion of a gas-engine to illustrate my invention, portions of one of the pipes, the distributing-box, and the junctionbox being represented as brokcn out, as is also a portion of one of the cylinders. Fig. 2 is a front elevation of the same.

Similar characters of reference indicate corresponding parts.

1, Fig. 1, represents a case provided with (No model.)

radialextensions 2 (in this instance three in number) for supporting the cylinders 3, 4, and 5, and mounted on this case is the crankshaft6. Thecylindersare providedwithordinary pistons 7, connected by connecting-rods 8 with the ordinary crank, which is mounted on the crank-shaft in the usual manner. The cylinders are exactly the same in construction, each being provided with an intake-valve 9, Fig. 1, of which 10 is the stem and 11 the spring, and an exhaust-valve 12, of which 13 is the stem and 14.- the spring. These valves are not new in construction, and in Fig. 1 they are shown as closed, as the particular cylinder illustrated as broken out in that figure is the cylinder 3. I

15 represents an ordinary guide for the valve-stem 13. The intake-passage 16 is connected by a suitable elbow 17 with the curved inlet-pipe 18,whose inner end is telescopically arranged within the pipe 19,'which rests on the periphery of the box 20, from which a pipe 21 extends into the pipe 19, each of the pipes 21 and 18 having a slip-jointconnection with the pipe 19, as shown in Fig. 1. The box 20 is annular and comprises the side Walls 20, the annular peripheral wall 22,.Fig. 1, and the concentric inner wal123, whereby a closed annular chamber is provided around the shaft 6, which extends through the opening formed by the inner wall 23. This box is connected by a short pipe :24: with a carbureter 25, as indicated in Fig. 2, whose portion 26 screws into said pipe, the box 20 22 operating as a distributer, whereby the gas is distributed successively through the sets of pipes 21, 19, 18, and 17 to the valves 10 in the cylinders.

27 is an annular junction box provided with an inner concentric wall 33' and is of exactly the same shape as the box 20 22 and bearing the same relation to the shaft 6, which rotates freely within the horizontal holes in both boxes, and this junction-box operates as a collector for the main exhaustpipe 28. The exhaust-ports 29, Fig. 1, in the different cylinders are connected by elbows 30 with pipes whose inner ends are connected with the box 27. One of the pipes is designated by the reference-figure 31, while the other two are numbered 32. The pipes 31 and 32 are all screwed to the elbows 30, and

the pipe 31 is connected by a screw-thread with the box 27, as illustrated in Fig. 1, and by this rigid connection supports said box and prevents it from bearing or binding on the shaft. The other two connecting-pipes 32 are connected with the box by a perfectly smooth slip-joint. By means of this construction or system of piping access to the working parts is quick and easy and inspection, repairs, 50., are greatly facilitated.-

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a gas-engine of the character described, a plurality of cylinders, each provided with an intake valve, an exhaustvalve, a piston and connecting-rod; the gearcase; the crank-shaft; the distributing-box 20 provided with the concentric outer and inner walls 22 and 23 and surrounding the crankshaft; pipes 21 rigidly connected with and extending from the said box; pipes 18 connected at oneend with the passage to the intake-valve; and the pipe 19 surrounding and having a slip-joint connection with the adjacent ends of the pipes 21 and 18, substantially as and for the purpose set forth.

2. In a gas engine of the character described, a plurality of cylinders, each provided with an intake valve, an exhaustvalve, a piston and connecting-rod; the gearcase; the crank-shaft; the junction-box 27 surrounding the crank 6; the pipe 81 having screw-thread connections at its opposite ends with the exhaust-port in a cylinder and the junctionbox; the pipes 32 having screw thread connections at one end with the exhaust-ports in the other cylinders and extending into and having slip-joint connections with the junction-box; and a main exhaust-pipe extending from said junction-box, substantiallyas and for the purpose described.

3. In a gas engine of the character described, a plurality of cylinders, each provided with an intake valve, an exhaustvalve, a piston and connecting-rod; the gearcase; the crank-shaft; a distributing-box supported by the machine; a carburetor connected with the distributing-box; a series of pipes connecting the distributing-box with the intake-valves of the several cylinders, each of said series comprising three pipes having slip-joint connections whereby they may be separated and assembled; a collecting junction-box supported by the machine and connecting with the main exhaust; a series of pipes connecting the junction-box with the exhaust-ports in the several cylinders, a portion of said series of pipes each comprisingapipeconnected byascrew-thread with the exhaust-port and having a slip-joint connection with the junction-box, and one of said series comprising a pipe which has screw-thread connections with both the junction-box and the exhaust-port of its cylinder, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM H. JONES.

Witnesses:

HENRY W. WILLIAMS, A. N. BONNEY. 

